Recent Blogs
Globoid Cam: Roller-Gear Animation and Indexing Calculator
See an hourglass cam drive a roller turret through index and dwell. Calculate cycloidal index time, peak output speed and tangential acceleration.
Face Cam: Cycloidal Motion and Follower-Speed Calculator | FIRGELLI
Explore a cycloidal axial cam schedule. Calculate ideal groove angle, follower speed and acceleration from stroke, rise angle, pitch radius and cam speed.
Meyer Expansion Valve: Cutoff Kinematics Calculator | FIRGELLI
Explore a harmonic relative-motion model for a Meyer riding cutoff. Calculate closing crank angle and ideal piston travel with a finite connecting rod.
Eccentric Cone Change-velocity (form 2) Mechanism: How It Works, Parts, Diagram & Uses Explained
Explore an eccentric cone on an advancing screw. Calculate roller height, signed rotational speed, vertical velocity and axial sliding during one turn.
Eccentric Cone Change-velocity (form 1) Mechanism: How It Works, Parts, Formula and Diagram
Explore an eccentric cone on an advancing screw. Calculate roller height, signed rotational speed, vertical velocity and axial sliding during one turn.
Disk Cam with Translating Follower Mechanism: How It Works, Diagram, Formula and Uses
Explore a cycloidal disk cam with a translating point follower. Compare full-cycle pressure angle, required base radius, peak velocity and acceleration.
Disk Cam with Oscillating Follower: How It Works, Parts, Formula, and Industrial Uses Explained
Explore an eccentric circular disk cam and oscillating roller follower. Calculate follower swing, output-tip arc and cycle time for the stated mounting geometry.
Continuous Rotary Cam to Alternating Bar Mechanism Explained: How It Works, Parts, Diagram, Uses
Explore a three-lobed cam driving an opposed-roller yoke. Compare cycle rate, peak bar speed, inertia force and guide reaction for a harmonic profile.
Conjugate Cam Mechanism: How It Works, Diagram, Formula and Worked Example
Explore paired flat-faced conjugate cams. Compare follower spacing and cam support distances to calculate clearance, interference and return-profile size.
Uniform-Traverse Heart Cam: Ideal Motion Calculator | FIRGELLI
Calculate selected-angle position, radial distance, nominal traverse speed and reversal frequency for an ideal heart-cam motion law.
Cams on Shaft to Alternating Rod Motion: How It Works, Diagram, Parts, and Uses Explained
Explore two shaft-mounted cams driving rocker levers and guided rods. Compare nominal phase, key-clearance allowance and the resulting timing shift at a chosen speed.
Cams of Varying Throw (expansive Valve) Mechanism Explained: Parts, Diagram, Formula & Uses
Select cam throws on a sliding shaft and explore their effect on a roller lever and valve rod. Compare rod travel, peak speed and lever...
Cam-wiper Alternating Rectilinear (stamper) Mechanism: How It Works, Diagram, Parts and Uses
Explore a two-wiper gravity stamper. Calculate ideal drop energy, impact speed, fall time and lifting force, with a contact and return-time speed check.
Cam-wheel with Profile Rim Mechanism: How It Works, Parts, Diagram and Industrial Uses Explained
Explore a profile-rim cam with a guided roller. Compare cycloidal lift, cycle time, peak speed, acceleration and inertial allowance per unit follower mass.
Cam Producing Variable Rectilinear Motion Mechanism Explained: How It Works, Diagram, Parts & Uses
Explore a cycloidal disk cam and ideal knife-edge follower. Adjust stroke, radius, rise angle and speed to compare displacement, velocity and pressure angle.
Cam Between Yoke Friction-rollers (valve) Mechanism Explained: How It Works, Parts, Diagram & Uses
Explore an irregular cam between opposed rollers in a guided yoke. Compare roller-centre spans, allowance and cycle period, with clearance and interference previews.
Beveled Disk Cam to Rod Mechanism: How It Works, Diagram, Formula, and Uses Explained
Explore a rotating inclined disk driving a guided axial rod. Calculate stroke, peak velocity and acceleration from contact-track diameter, inclination and shaft speed.
Triangular Eccentric: Threefold Form and Height Comparison
Explore a schematic triangular form and compare two defined geometric heights. The calculation does not determine a cam profile or follower stroke.
Cylindrical Cam Mechanism Explained: How a Drum Cam Works, Parts, Formula and Uses
Explore a closed barrel-cam groove with cycloidal rise and return. Calculate selected follower travel, signed axial velocity, groove slope and rise time.
Wet Gas Meter Mechanism: How the Rotating Drum Measures Gas Volume, Parts, Diagram and Uses Explained
Explore wet gas-meter drum speed and flow conversions. The water-level indicator is hypothetical and must not be used as a calibration correction.
Underfeed Stoker: Ideal Screw-volume and Heat Comparison
Explore screw feeding beneath a fuel bed. Compare ideal swept volume and heat using fixed density and heating-value assumptions; furnace performance is not predicted.
Siemens Electric Gas Furnace Mechanism: How the LMV Burner Controller and SQM Servos Work
How a Siemens electric gas furnace works — burner control, ignition sequencing, and modulation logic for industrial heating, with sizing math and real examples.
Petroleum Furnace: Declared Air-Flow Accounting
Petroleum furnaces burn oil to fire steam boilers and process heaters. Learn the burner physics, atomisation specs, and real refinery applications.
Petroleum Burner: Fuel-Rate Energy Accounting
Petroleum burner explained — how atomising oil burners work, key components, sizing formula, and real applications in marine boilers, kilns, and asphalt plants.
Ore Roasting Furnace: Multiple-Hearth Rabble Principle
Explore a multiple-hearth ore-roasting furnace and its rotating rabbles. Calculate feed and sulfur masses and an assumed maximum sulfur-dioxide equivalent.